Juan Vargas
Software Engineering Student @ UC
Experience
Founding Engineer @ Blar.io
October 2024 - Present
Built blarify, an open-source tool to convert code into graphs using LSP and Tree Sitter. Led agent-based bug detection with LangGraph. Collaborated with Microsoft's multilspy, scaling support to more languages.
Capstone Leader @ Pontificia Universidad Católica de Chile
March 2024 - July 2024
Led frontend development of a secure medical web app and built a WhatsApp LLM chatbot trained in obstetrics. In collaboration with MiTribu.
Freelance Developer @ SignatureAPI
November 2023 - January 2024
Built an MVP using C# on Raspberry Pi for secure hardware authentication. Automated deployment using Bash.
Projects
Teapot
March 2025 - Present
Optimization engine (FastAPI + AI) to boost students' PAES test scores. In collaboration with Filadd (YC S21).
SortEm
August 2024 - December 2024
Interactive web game with over 11,000 completed matches that challenges users to sort numbers against the clock.
HairlessLifting
July 2024 - November 2024
Strength training app with 190+ exercises, automated via Puppeteer.
PicoHero
Interface a Wii Guitar Hero controller to a PC using a Raspberry Pi Pico.
Talk2Me
One-finger accessible text input app.
Other Highlights
- 2nd place at Platanus Hackathon – Math quiz generator (Quompy)
- CTF participant (UTFSM, UC) – cybersecurity challenges
- Music enthusiast – plays various instruments, loves Brazilian music